C1verb2K

Seal

UK /["/siːl/","/siːlz/","/siːld/","/ˈsiːlɪŋ/"]/US /["/siːl/","/siːlz/","/siːld/","/ˈsiːlɪŋ/"]/

Definition

to close an envelope, etc. by sticking the edges of the opening together

In simple words: A sea animal that has flippers and can swim.

Examples

  • Please seal the envelope before you mail it to ensure the contents don't fall out.
  • The workers seal the cracks in the pavement to prevent water damage.
  • The archaeologists carefully seal the ancient tomb after completing their research.
  • To maintain freshness, always seal the food tightly in an airtight container.
  • The government decided to seal off the area to control the spread of the virus.

Usage notes

Use 'seal' when referring to the animal or when discussing sealing something in a formal context. Avoid using in informal conversations unless referring to the animal.

Grammar pattern

standalone noun

Memory hint

Think of a swimming seal playing in the ocean — its flippers help it glide through water.

Collocations

  • carefully
  • properly
  • tightly
  • from
  • with
  • carefully
  • properly
  • tightly
  • from
  • with

Synonyms

  • sea lion
  • pinniped
  • marine mammal

Antonyms

  • open
  • unseal
  • uncover

Common mistakes

  • Confused with 'ceal' — make sure to remember the correct spelling.
  • Using 'seal' when they mean 'sign' or 'approval'.
  • Mispronouncing the word, often saying it like 'see-al'.